20020448

素因数分解:

$2^5\times 7^1\times {\mathrm{139}}^1\times {\mathrm{643}}^1$

素因数の和:799

約数の個数: 48

約数和(自身を含む): 45440640

約数和(自身を除く): 25420192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 139, 224, 278, 556, 643, 973, 1112, 1286, 1946, 2224, 2572, 3892, 4448, 4501, 5144, 7784, 9002, 10288, 15568, 18004, 20576, 31136, 36008, 72016, 89377, 144032, 178754, 357508, 625639, 715016, 1251278, 1430032, 2502556, 2860064, 5005112, 10010224, 20020448]

約数ペア:

[(1, 20020448), (2, 10010224), (4, 5005112), (7, 2860064), (8, 2502556), (14, 1430032), (16, 1251278), (28, 715016), (32, 625639), (56, 357508), (112, 178754), (139, 144032), (224, 89377), (278, 72016), (556, 36008), (643, 31136), (973, 20576), (1112, 18004), (1286, 15568), (1946, 10288), (2224, 9002), (2572, 7784), (3892, 5144), (4448, 4501)]